Table 3.
Quality of crude viscera oil (CVO) extracted at different temperatures (40, 60, 80, and 90 °C) and different extraction times (10′, 30′, and 60′), as determined by the evaluation of peroxide value (PV; meqO2/kg) and thiobarbituric acid reactive substances (TBARS) (MDA µg/g). Commercial cod liver oil was used as the control oil (CO).
| Sample | Parameters | ||
|---|---|---|---|
| Temperatures | Times | PV | TBARS |
| 40 | 10 | 6.17 ± 0.47 b | 16.01 ± 0.02 b |
| 30 | 6.51 ± 0.22 b | 15.59 ± 0.03 b | |
| 60 | 10.29 ± 2.37 c | 21.18 ± 5.85 bc | |
| 60 | 10 | 5.42 ± 0.13 b | 14.15 ± 0.07 b |
| 30 | 6.38 ± 0.03 b | 16.58 ± 0.01 b | |
| 60 | 11.33 ± 0.75 cd | 14.31 ± 0.22 b | |
| 80 | 10 | 11.01 ± 1.77 cd | 17.50 ± 2.41 b |
| 30 | 13.27 ± 2.13 d | 25.38 ± 8.59 c | |
| 60 | 19.69 ± 0.90 e | 19.89 ± 2.29 bc | |
| 90 | 10 | 10.99 ± 0.53 cd | 31.41 ± 6.33 d |
| 30 | 19.67 ± 2.10 e | 33.09 ± 1.31 d | |
| 60 | 22.74 ± 2.27 f | 33.43 ± 5.63 d | |
| CO | 2.10 ± 0.53 a | 5.51 ± 0.81 a | |
Different superscript letters in the same column indicate significant differences (a, b, c…: p < 0.05). The data are reported as mean ± standard deviation (n = 12).